Here is just one avenue to seek more information on-

Of all those tests you have had done, I would say the the test for lyme disease is the most notoriously inaccurate, resulting in way too many false negative results. I have read that about 1/3 of positive Lyme cases test out as false negative. Also, contrary to what we have been assured over the past years, Lyme disease is perhaps not always 'cured' by the typical 30 days round of antibiotics, but can possibly go dormant in the body only to re-emerge and do more damage later on. New information is being discovered every day about Lyme disease, and it is apparently far more prevalent than previously stated.
It has so many varied symptoms in different people that makes it hard to pinpoint and is sometimes finally dismissed by doctors as a mental/emotional problem, especially when lab tests come back negative for Lyme.

I watched this documentary about chronic undiagnosed Lyme disease- you might want to get a copy and watch it....it has a lot of astounding information and really opened my eyes to some things:
http://www.underourskin.com/index.html
This documentary changed how I see things in a big way.

Lyme disease and fibromyalgia might be connected:
http://www.revolutionhealth.com/stor...e97b197213e680

Now mind you I am not saying that I think you have Lyme disease, but considering how misdiagnosed Lyme is, and how many wildly varied illness symptoms it produces, it might be something you would like to investigate a bit further. Especially considering that you have seemingly reached a roadblock in locating the cause of your multiple long term symptoms.

good luck with all this.